Search a number
-
+
229648768 = 274759647
BaseRepresentation
bin11011011000000…
…10100110000000
3121000010100212221
431230002212000
5432242230033
634442100424
75455660636
oct1554024600
9530110787
10229648768
111086a3578
1264aaa714
133876845b
14226dd356
151526412d
hexdb02980

229648768 has 64 divisors (see below), whose sum is σ = 475891200. Its totient is φ = 110305792.

The previous prime is 229648753. The next prime is 229648787. The reversal of 229648768 is 867846922.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354621 + ... + 355267.

It is an arithmetic number, because the mean of its divisors is an integer number (7435800).

Almost surely, 2229648768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 229648768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237945600).

229648768 is an abundant number, since it is smaller than the sum of its proper divisors (246242432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

229648768 is an equidigital number, since it uses as much as digits as its factorization.

229648768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767 (or 755 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 52.

The square root of 229648768 is about 15154.1666877463. The cubic root of 229648768 is about 612.3805285791.

The spelling of 229648768 in words is "two hundred twenty-nine million, six hundred forty-eight thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 16 32 47 59 64 94 118 128 188 236 376 472 647 752 944 1294 1504 1888 2588 2773 3008 3776 5176 5546 6016 7552 10352 11092 20704 22184 30409 38173 41408 44368 60818 76346 82816 88736 121636 152692 177472 243272 305384 354944 486544 610768 973088 1221536 1794131 1946176 2443072 3588262 3892352 4886144 7176524 14353048 28706096 57412192 114824384 229648768